No...eash... when I put the boat away for the season its part of my winterization checklist.

What? The bearings are dense plastic, they will not soak up 303. It might be lubing the shaft for a few minutes but it's a waste.

Again, OP if you need to use two hands to break loose the prop and turn it, there is something else that is a issue here. Masking that issue with witch doctor type cures is not where you want to be, period.